Home / 104,991.21-144,890.61-64,731.57

Finding the Fourth Proportional to 104,991.21, 144,890.61 and 64,731.57

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Solution

The fourth proportional to 104,991.21, 144,890.61 and 64,731.57 is: 89,331.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,991.21 : 144,890.61 = 64,731.57 : x
  2. Step 2: Convert to fraction form
    104,991.21/144,890.61 = 64,731.57/x
  3. Step 3: Cross multiply
    104,991.21x = 144,890.61 × 64,731.57
  4. Step 4: Simplify right side
    104,991.21x = 9,378,996,663.56
  5. Step 5: Solve for x
    x = 9,378,996,663.56/104,991.21
  6. Step 6: Final answer
    x = 89,331.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.